/*
 *  OpenSCAD (www.openscad.org)
 *  Copyright (C) 2009-2011 Clifford Wolf <clifford@clifford.at> and
 *                          Marius Kintel <marius@kintel.net>
 *
 *  This program is free software; you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation; either version 2 of the License, or
 *  (at your option) any later version.
 *
 *  This program is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with this program; if not, write to the Free Software
 *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 *
 */

module step(len, mod)
{
	for (i = [0:$children-1])
		translate([ len*(i - ($children-1)/2), 0, 0 ]) child((i+mod) % $children);
}

for (i = [1:4])
{
	translate([0, -250+i*100, 0]) step(100, i)
	{
		sphere(30);
		cube(60, true);
		cylinder(r = 30, h = 50, center = true);
	
		union() {
			cube(45, true);
			rotate([45, 0, 0]) cube(50, true);
			rotate([0, 45, 0]) cube(50, true);
			rotate([0, 0, 45]) cube(50, true);
		}
	}
}
